Asked by sara
a radio uses one-third the number of watts used by lamp, and a heater that uses 15 times as many watts as a lamp. when all are in use, the total electrical power is 1.1 kilowatts how many does the radio use?
Answers
Answered by
PsyDAG
L/3 = R
15L = H
L + R + H = L + L/3 + 15L = 1.1
Solve for L, then R.
15L = H
L + R + H = L + L/3 + 15L = 1.1
Solve for L, then R.
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